How can I efficiently conduct a multiple flight search to find the best travel options for my trip?

To efficiently conduct a multiple flight search for your trip, use online travel websites or apps that allow you to compare prices and schedules across different airlines. Enter your travel details, such as dates and destinations, and use filters to narrow down options based on your preferences. Consider booking flights with layovers or flexible dates to find the best deals. Be sure to compare prices and read reviews before making a decision.